Patent US2634305A successfully refreshed from Google Patents.
US2634305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deferred-action battery
Assignee: GTE Sylvania Inc
•
Filing: 1948-11-23
•
Granted: 1953-04-07
•
Expires: 1968-11-23
Abstract
No abstract record available.
Inventors
- 👤 James N Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:25
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
A BATTERY HAVING A STACK OF CELLS EACH INCLUDING, IN THE ORDER NAMED, A PLATE OF ONE METAL, A BIBULOUS SEPARATOR, AND A THIN LAYER OF A SALT OF ANOTHER METAL LOWER THAN THAT OF SAID PLATE IN THE ELECTROCHEMICAL SERIES, SAID CELLS BEING STACKED WITH A WATERPROOF CONDUCTING FILM ADHERED TO THE RESPECTIVE ADJACENT METAL PLATES AND SALT LAYERS, THE EDGES OF SAID ADHERED PLATES AND LAYERS BEING PROTECTED BY ADHERENT WATERPROOF
References Cited (Backward Citations)
US403451A
Cited
US1624455A
Cited
US1797161A
Cited
FR668569A
Cited
US2146377A
Cited
FR784460A
Cited
GB482363A
Cited
GB495054A
Cited
US2444034A
Cited
US2487985A
Cited
US2475152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |